A&EAlarms & Events

ANSIAmerican National Standards Institute

APIApplication Program Interface

ARCNETAttached Resource Computer NETwork

ASHRAEAmerican Society of Heating, Refrigerating and Air-Conditioning Engineers

ASN.1Abstract Syntax Notation One (ISO 8824)

BACnetBuilding Automation and Control networks

COVChange of Value

DAData Access

HDAHistorical Data Access

HMI Human-Machine Interface

IECInternational Electrotechnical Commission

IPInternet Protocol - RFC 791

ISOInternational Organization for Standardization

LANLocal Area Network

MESManufacturing Execution System

NaN"Not a Number", a unique binary pattern representing an invalid number

(see ANSI/IEEE 754-1985)

NATNetwork Address Translation - RFC 2663

PICS Protocol Implementation Conformance Statement

UA Unified Architecture

UTCUniversal Time Coordinated

XMLExtensible Markup Language